Reference | Number of patients with confirmed diagnosis | Age range (years) | Sex (n, %) | Affected ear involvement (n, %) | Signs and symptoms (n, %) | Risk factors (n, %) |
---|---|---|---|---|---|---|
[23] | 86 | 17–50 | Male (50, 58.1%), female (36, 41.9%) | Right (56, 65.1%), left (30, 34.9%) | Pruritus (61, 70.9%), otalgia (50, 58.1%), fullness (45, 52.3%), otorrhea (23, 26.7%), headache (20, 23.3%) | NR |
[13] | 97 | Most common: 30–39 (33%) | Male (27, 27.8%), female (70, 72.2%) | Right (36, 37.1%), left (32, 33%), bilateral (29, 29.9%) | Pruritus (82, 84.5%), otalgia (66, 68.0%), hearing impairment (79, 81.4%), tinnitus (51, 52.6%), otorrhea (60, 61.9%), TM perforation (19, 19.6%), inflammation (62, 63.9%) | Manipulation of ear canal (61, 62.9%), swimming (26, 26.8%), ototopical steroids or antibiotics (16, 16.5%), diabetes (11, 11.3%) |
[25] | 144 | 10–87 (mean = 39.6) | Male (61, 42.4%), female (83, 57.6%) | Right or left (131, 91%), bilateral (13, 9%) | Pruritus (89, 61.8%), otalgia (104, 72.2%), TM perforation (24, 16.7%) | Manipulation of ear canal (117, 81.3%), swimming (24, 16.7%), diabetes (14, 9.7%) |
[26] | 237 | 9–90 | Male (125, 52.7%), female (112, 47.3%) | Right (149, 62.9%), left (85, 35.9%), bilateral (3, 1.3%) | Pruritus (210, 88.6%), otalgia (144, 60.8%), hearing impairment (216, 91.1%), otorrhea (181, 76.4%), TM perforation (16, 6.8%), edema (125, 52.7%) | Manipulation of ear canal (170, 71.7%), swimming (83, 35.0%), hearing aid (7, 3.0%), ototopical antibiotics (59, 24.9%), diabetes (29, 12.2%) |
[27] | 145 | Most common: 50–59 (26.2%) | Male (81, 55.9%), female (64, 44.1%) | Right (81, 55.9%), left (60, 41.4%), bilateral (4, 2.8%) | Pruritus (118, 81.4%), otalgia (85, 58.6%), hearing impairment (134, 92.4%), otorrhea (96, 66.2%), edema (89, 61.4%) | Manipulation of ear canal (112, %), swimming (12, %), hearing aid (15, %), ototopical antibiotics (82, %) |
[28] | 108 | 14–80 (mean: 45) | Male (49, 45.4%), female (59, 54.6%) | Right (50, 46.3%), left (43, 39.8%), bilateral (15, 13.9%) | Pruritus (82, 75.9%), otalgia (87, 80.6%), hearing impairment (73, 67,6%), tinnitus (30, 27.8%), otorrhea (69, 63.9%), TM perforation (39, 36.1%), inflammation (55, 50.9%) | Manipulation of ear canal (83, 76.9%), swimming (14, 13.0%), hearing aid (4, 3.7%), antibiotics (56, 51.9%), diabetes (15, 13.9%) |
[29] | 101 | Most common: 40–50 (31.6%) | Male (44, 43.6%), female (57, 56.4%) | Right or left (80, 79.2%), bilateral (21, 20.8%) | Pruritus (50, 49.5%), otalgia (56, 55.4%), hearing impairment (19, 18.8%), tinnitus (10, 9.9%), scaling (5, 5.0%), fullness (43, 42.6%), TM perforation (6, 5.9%) | Manipulation of ear canal (100, 99.0%%), swimming (9, 8.9%), ototopical antibiotics (43, 42.6%), ototopical steroids (34, 33.7%), diabetes (15, 14.9%) |